It is not possible to create a ddl-trigger with "any DDL statement" clause
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Key: CORE-3964
URL: http://tracker.firebirdsql.org/browse/CORE-3964
Project: Firebird Core
Issue Type: Bug
Affects Versions: 3.0 Initial
Environment: probably all platforms (tested on Windows 7.0 and Ubuntu
12.04)
Reporter: Frank Schlottmann-Goedde
Using the following script in isql against the employee database demonstrates
the error
/*
It is not possible to create a ddl-trigger with "any DDL statement" clause
fails with:
Statement failed, SQLSTATE = 42000
unsuccessful metadata update
-CREATE TRIGGER TAA_SQL1 failed
-Invalid command
-Database trigger type can't be changed
probably due to the following code in DdlNodes.epp:
2967:// ASF: Unregistered bug (2.0, 2.1, 2.5, 3.0): CREATE OR ALTER TRIGGER
accepts different table
// than one used in already created trigger.
AutoCacheRequest requestHandle(tdbb, drq_m_trigger2, DYN_REQUESTS);
FOR (REQUEST_HANDLE requestHandle TRANSACTION_HANDLE transaction)
TRG IN RDB$TRIGGERS
WITH TRG.RDB$TRIGGER_NAME EQ name.c_str()
{
if (type.specified && type.value != (FB_UINT64)
TRG.RDB$TRIGGER_TYPE &&
TRG.RDB$RELATION_NAME.NULL)
{
status_exception::raise(
Arg::Gds(isc_dsql_command_err) <<
Arg::Gds(isc_dsql_db_trigger_type_cant_change));
}
*/
CREATE TABLE MP$MODIFIED_TABLES (
RELATION_NAME CHAR(31)
);
CREATE INDEX MP$MODIFIED_TABLES_IDX ON MP$MODIFIED_TABLES (RELATION_NAME);
set term ^;
create trigger TAA_SQL1
active after any DDL statement position 0
as
begin
if ((RDB$GET_CONTEXT('DDL_TRIGGER', 'OBJECT_TYPE') = 'TABLE') and
(RDB$GET_CONTEXT('DDL_TRIGGER', 'EVENT_TYPE') in ('CREATE', 'DROP') or
(RDB$GET_CONTEXT('DDL_TRIGGER', 'SQL_SOURCE') containing 'FIELD')))
then
insert into MP$MODIFIED_TABLES (RELATION_NAME)
values (RDB$GET_CONTEXT('DDL_TRIGGER', 'OBJECT_NAME'));
end^
set term ;^
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